A wealth of information and resources are available on the specific topic of pornography and the broader topics related to it. We've listed a few of them here.
Biblical Counseling Services
Reigning Grace Counseling Center
Changing Behavior Biblically
The Process of Biblical Heart Change by Julie Ganschow
For Men and Women
Passions of the Heart: Biblical Counsel for Stubborn Sexual Sins by John D. Street
Finally Free by Heath Lambert
Undefiled: Redemption from Sexual Sin, Restoration for Broken Relationships by Harry Schaumburg
False Intimacy: Understanding the Struggle of Sexual Addiction by Harry Schaumburg
Addictions--A Banquet in the Grave: Finding Hope in the Power of the Gospel by Edward T. Welch
Changed into His Image by Jim Berg
For Men
Sexual Sanity for Men: Recreating Your Mind in a Crazy Culture by David White
At the Altar of Sexual Idolatry by Steve Gallagher
Wired for Intimacy: How Pornography Hijacks the Male Brain by William M. Struthers
For Teens
Changed into His Image Student Edition by Jim Berg
For Children
Good Pictures Bad Pictures Jr by Kristen A. Jenson
For Counseling
A Biblical Guide to Counseling the Sexual Addict by Steve Gallagher
For Group or Individual Study
Spiritual Disciplines for the Christian Life, Book & Study Guide by Donald Whitney